[clang] [llvm] [CodeGen][ObjC] Initial WebAssembly Support for GNUstep (PR #169043)

[Hugo Melder via llvm-commits]

hmelder wrote:

@davidchisnall the changes in codegen are trivial:
1. Mangle public symbols with '$' instead of '.' as the latter is not a valid javascript identifier.
2. Fix the function signature of `class_registerAlias_np` to return a bool instead of void.

https://github.com/llvm/llvm-project/pull/169043